refactor: simplify resolve_execroot_bin_path condition

The exec_path == target_path guard was redundant: when the two paths are
identical (same exec/target platform), [ -e "$exec_path" ] produces the
same result as [ -e "$target_path" ], so the caller gets the correct
path either way.

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>

Author: acozzette

js/private/js_binary.sh.tpl

@@ -105,7 +105,7 @@ function resolve_execroot_bin_path {
     fi
     local exec_path="$JS_BINARY__EXECROOT/$JS_BINARY__BINDIR/$suffix"
     local target_path="$JS_BINARY__EXECROOT/${BAZEL_BINDIR:-$JS_BINARY__BINDIR}/$suffix"
-    if [ "$exec_path" = "$target_path" ] || [ -e "$exec_path" ]; then
+    if [ -e "$exec_path" ]; then
         echo "$exec_path"
     else
         echo "$target_path"